The 42-year-old, who has not been named, was with her boyfriend at the home of Peter Sline in Moorland Avenue, Feniscowles, in the early hours of yesterday.

Police confirmed they had been alerted to the death and that it was not believed to be suspicious.

Yesterday, Mr Sline, a window cleaner, said the three had been drinking when the woman passed away.

He said: “She had been asleep for about an hour and then she just got up, lay down on the floor and died.”

A police spokeswoman said: “Police were called to an address on Moorland Avenue, Blackburn, by the ambulance service in the early hours of yesterday morning following the report of a sudden death of a woman in her 40s.